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Arlecino [84]
3 years ago
8

PLEASEEEEEEEE HELPPPPPPP

Mathematics
1 answer:
Masteriza [31]3 years ago
8 0
It would be the 4th one
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Tony bought 20 raffle tickets at a fire station. The fire station sold a total of 80 raffle tickets. What is the probability tha
Citrus2011 [14]
If Tony bought 20 out of 80 tickets, then it would be 25% because 20 is 1/4 of 80.
Hope I helped!
8 0
3 years ago
2x(squared) + 23x-19=0
Helen [10]
Use quadratic formula

for ax^2+bx+c=0
x=\frac{-b+/- \sqrt{b^2-4ac} }{2a}

given
2x^2+23x-19=0
a=2
b=23
c=-19

x=\frac{-23+/- \sqrt{23^2-4(2)(-19)} }{2(2)}
x=\frac{-23+/- \sqrt{529-152} }{4}
x=\frac{-23+/- \sqrt{377} }{4}

x=\frac{-23+ \sqrt{377} }{4} or \frac{-23- \sqrt{377} }{4}
7 0
3 years ago
From past experience, the organization knows that about 20% of all potential donors will agree to give something if contacted by
Veronika [31]

Answer:

Total number of  donor who will give first $ 100 = 100 people  

Step-by-step explanation:

Given that:

Total percentage of people who donate when contact by phone 20%

Percentage of donating people who will give $100 or more = 5% = 0.05

Total number of donor who will give first $ 100 can be calculated as

calculate the percentage of donor who will give first $ 100  

P(X) =  0.05\times 0.20 = 0.01\ percent

\mu_x = \frac{1}{0.01}

so, total number of the donor who will give first $ 100 = 100 people  

3 0
3 years ago
In frank grade there are 55 students currently 40% of them are enrolled in health, how many are enrolled in health?
a_sh-v [17]

Answer: 22 people in health

Step-by-step explanation: If you use a calculator, the answer sums up to 22 people in health.

5 0
2 years ago
2/3 of the people in the group came in blue cars and 1/8 of them came in red cars they were 48 people in the group so how many p
vodka [1.7K]

Answer:

32 people came in blue cars and 6 people came in red cars

Step-by-step explanation:

Technically, all 48 people came in red or blue cars, but I'm assuming that's not what the question is asking.

To find how many people came in blue cars, we do 2/3*48 which is equal to 32 people.

To find how many people came in red cars, we do 1/8*48 which is equal to 6 people.

7 0
3 years ago
Read 2 more answers
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